Roller-bearing swivel wrench plate



Nov. 25, 1924- 1,516,812

W. H. ELLJNGER ROLLER BEARING SWIVEL WRENCH PLATE Filed Aug. 1 19?]assembled.

Patented Nov. Z5, 1924.

Nr eric.

ROLLER-BEARING SWIVEL WRENCH PLATE.

Application filed August 1,1921. Serial No. 489,036.

or bit for use in oil fields -andwater well drilling which tool orwrench plate is .provided with certain safety appliances to prevent thewrench plate from releasing the .fishing tool or bit. *A further objectis to provide certain improvements which will make the wrenclrplateeasily operated and to provide the plate with `roller bearings and meansfor preventing the loss'of the roller or ball bearings when the plate isVbeing knocked down or sep'aratedand when the wrench plate is beingassembled. @ther objects and'advantages will be fully explained in thefollowing description and the invention will bey more particularlypointed out in the claims. Y

Reference is had to the V`accompanying drawings which form a part ofthis application. n y

Fig. 1 is a plan viewof the wrench pla-te Fig. `2 is a plan view, partlyswung open, to illustrate the locking means. Fig. 3 is a iront elevationoitV the wrench plaie assembled. Fig. ilis a vertical section, taken onthe line elf-*4L ot Fig.' 1.' Figs. 5 and 6 are dift'ereinfviews of theball bearing lock shown on the right sides of' the views in Figs. 1, 2,and Fig. 7 illustrates Vplates 'or'bus'hings for attaching to the maintool when the main tool is-too large forsome specialsize bit or fishingtool. Fig'. Sis detail view, 'showing the construction of the ballandsocket joint.

Similar characters of reference' are-used to indicate the same partsthroughout the several views. Y

- The improved wrench plate 1s provided 'with a support which includes ahandle 1 member is in two parts 7 and 8 hingedly connected together attheir rear sides by a tongue and groove joint 9 and pivot bolt 10.Themembers 7 and 8 have depending handle members 11 and these handlesmay be bolted and made rigid with the members 7 and 8 but the handles11` must move freely within the support-s 13 and 14. The members 7 and 8have grooves in their under iaces for ball bearings 12. The bit ortoolengaging members 7 and 8 are carried by co-operating curved supports 13and 14 which are hingedly connected at-their rear sides by a tongue andgroove joint 15 and pivot bolt 16. The supports 13 and 141- have curvedgrooves in their upper faces for the ball bearings 12. lith suchconstruction, the swivel bit or tool engaging members 7 and 8 are easilyturned or adjusted on the supports 13 and 14, and in this manner thehitor fishing tool can be adjusted to the required positions. Thesupporting members 13 and 14 are mounted on-trunnions 17 which arecarried in the bearings 5 ofthe arms 2 and 3. VBy means ofthetrunnions-17 the engaging members 7 and 8 and their supportingmembersl and 14 having a rocking motion are adapted to be turned so thatthe bit or tool may be engaged at` different angles or positions. Thetrunnions 17 have balls 29 formed on their outer ends and are held inthe supports 2 and .3 or their bearings by caps 30. rlhe trunnions 17have annular grooves 19 near their ends and locking studs 20 are screwedinto the supporting are partly openedin Fig.12. The supporting membersare connected at their front sides bya tongue and groove joint 22 andthis joint is locked by a. specially constructed locking device. Thesame` locking device serves to lock the balls 12 in their race. f A bolt23 has a groove V24 in'its upper face corresponding` in contour to thegroove in member 14. IlVhen the device is locked in operative position,the balls 12 will' run through the/groove 24: just as in the grooves inmembers 13 and 14. The bolt 2?)occupies` the opening 25 in the lockedposition, as in (Sil Figs. 1 and 3. The bolt .23 is cut away to form aneck Q6 or narrow portion so that the bolt ma)7 be turned one quarterturn to permit the tongue 22 to be withdrawn from its locked positionwhen the tool is to be opened. The tongue 22 has a slot from the opening25 toy the end so that the tongue can be drawn `away from the bolt 23,the neck 26 passing through the slot. Fig. 6 shows the bolt in thelocked position as in Fig. 3 and the tongue 22 cannot be withdrawnbecause the neck 26 is standing with the broad side towards the slot intongue 22. Then thebolt 23 is turned a quarter turn to permit the tongue22 to be withdrawn7 the kgroove 2A is'turncd cross-wise the groove inmember la so that the balls 12 cannot pass. The balls are thus locked inplace, as shown by the bolt 27 in Fig. 2, the groove in the head of thebolt being turned cross-wise the groove in member 13.

(avities are made in the faces of bearings 5 and caps 30 to form socketsfor the balls 29 on trunnions 17. The caps 30 are bolted to the bearings5 by bolts 18.

For adapting the tool herein described for bits or fishing tools ofsmaller size, bushings or plates 2S may be bolted to the members 'T and8. The bushings have smaller opening` therethrough than the opening inthe members and 8.

`What I claim, is-,

1. A swivel wrench plate comprising a carrier in two parts consisting ofcurved arms hingedly connected together, a wrench plate supportconsisting of two curved members hingedly connected together at theirrear sides and having a detachable tongue and groove connection at theirfront sides, trunnions for mounting said curved supporting members onsaid curved arms having ball and socket connections with said curvedcarrier arm, and a wrench plate rotatably mounted on said support andconsisting of two members hingedly connected at their rear edges.

2. A swivel wrench plate comprising a carrier, a wrench plate supportconsisting of two curved members hingedly connected at their rear sidesVand having adetachable connection at their front sides and said membershaving a continuous curved groove in their upper faces when lockedtogether, trunnions for supporting said wrench plate having ball andsocket connections with said carrier, a tool engaging member' in twoparts hingedly connected together at their rear sides and having acontinuous curved groove in their under faces when in operativeposition, ball bearings mounted in the curved grooves between saidsupport and said tool engaging member, and handles for said toolengaging member projecting down through said support.

3. A swivel wrench plate comprising a carrier composed of two curvedarms hingedly connected together, av support composed of two curvedmembers hingedly connected together at their rear edges and detachablvvconnected at their front edges, trunnions having ball and socketconnections with said curved carrier arm and pivotally connected withthe curved arms of said support, and means for locking said trunnionagainst removal from said pivotal connections, a tool engaging member intwo parts hingedly connected together at their rear sides, said toolengaging member and said support having curved grooves forming a ballbearing race between their meeting faces, and handles for saidtool-engaging member projected down through said support.

4. A swivel wrench plate comprising a carrier composed of two curvedarms hingedly connected together and provided with bearing terminals,tool supporting and operating members hingedly connected together attheir rear sides and detachably connected at their front sides,trunnions having balls at one end mounted in said terminals and havingthe other ends inserted in said tool supporting members, means forholding said balls in said terminals, and means preventing the removalof said trunnions from said supporting and operating members.

5. A swivel wrench plate having a carrier, a supporting member pivotallymounted in said carrier, a tool engaging member mounted on saidsupporting member, said supporting member and said tool engaging memberhaving concentric grooves in their adjacent faces, ball bearings mountedin said grooves, and means for locking said ball bearings in saidgrooves when said members are opened to receive a tool, including boltshaving grooves corresponding to the grooves in said supporting member.

6. A swivel wrench plate having a carrier, a supporting member pivotallymounted in said carrier, a tool engaging member mounted on said support,said members having grooves in their adjacent faces constituting a ballbearing race, ball bearings in said racc, and means for locking saidballs in said race when said members are opened to receive a tool andfor releasing a tool consisting of bolts provided with heads havinggrooves therein corresponding to the grooves i-n said members andforming a part of said race and adapte-d to be turned one quarter turnand form stops in said race.

7. A swivel wrench plate having a cai'- rier, a supporting membermounted on said carrier, a tool engaging member mounted on said'support, said members having grooves in their adjacent faces forming arace for ball bearings, ball bearings in said race, and means forlocking said balls in lil) Cil

said ace when said members are to be opened consisting ol oolts havingheads provided with grooves therein corresponding` to the grooves:forming said race and forming n pui-t of said race and adapted to beturned one quarter turn and form stops in said race and one of saidbolts normally locking said supporting member in operative position butreleasing the parts forming said support when turned to lolok said balls1o in said race.

In testimony whereof, I set my hund, this 20th day of July, 1921.

WILLIAM H. ELLINGER.

